24. Some people fear that _____ air pollution may bring about changes in _____ weather around the world. (2009江西卷)

　 A. X; the　 B. the; X　 C. an; the　 D. the; a

23. Let’s go to _____ cinema---that will take your mind of the problem for _____while. (2009全国卷)

　 A. the; the　 B. the; a　 C. a; the　 D. a; a

22. The biggest whale is _____ blue whale which grows to be about 29 meters long-the height of ____9-storey building　 (2009北京卷)

　 A. the; the　 B. a; a　 C. a; the　 D the; a

21. I don’t understand what the engineer means, but I have got _____ rough idea of _____ project plan. (2009浙江卷)

　 A. the; a　 B. X; the　 C. the; X　 D. a; the

20.　In　the　United　States,　there　is　always　____　flow　of　people　to　areas　of　______　country　where　more　jobs　can　be　found. (2008 四川卷)　

　A.　a;　the　　　　　B.　the　;　a　　　　C.　the;　the　　　D.　a;　a

19.　In　many　places　in　China,　______bicycle　is　still　______poplar　means　of　transportation. (2008 重庆卷)

　　　A.　a;　the　　　　　　B.　/;　a　 　　C.　the;　a　　　　　　D.　the;　the

18.　I　ate　______sandwich　while　I　was　waiting　for　____20:08　train. (2008 陕西卷)

A.　the,　a　　　B.　the,　the　　　C.　a,　the　　　D.　a,　a

17.　It’s　not　___　good　idea　to　drive　for　four　hours　without　___　break. (2008 全国卷B)

A.　a　;　a　B.　the　;　a　　C.　the　;　the　　D.　a　;　the

16.　My　neighbor　asked　me　to　go　for　______　walk,　but　I　don’t　think　I’ve　got　______　energy. (2008 辽宁卷)

　　 A.　a;　不填 B.　the;　the C.　不填；the D.　a;　the

15.　---　I　am　so　sorry　to　have　come　late　for　the　meeting.

---　It　is　not　your　fault.　With　__　rush-hour　traffic　and　__　heavy　rain,　it　is　no　wonder　you　were　late. (2008 江西卷)

A.　a;　a　　　　　　　B.　the;　the　　 C.　/;　/　　　　D.　/;　a